My 15PM is 97% after 180 cycles. Currently set to 80% but did have it on 85% for quite a while.My iPhone 15 Pro Max is at 90% of battery capacity after 708 cycles. My battery is in phenomenal shape for two years old. The new operating system gives me an opportunity to set my charging level so I upped it to 85%, which should still give me the same level of goodness.
Having my iPad mini means I am probably using the 15PM a bit less when I am out - but the hotspot is on a lot of the time as my iPad is wifi only.
Adding: Initially I used USB but, for a long time now, I use a no-name night-stand magsafe charger. And I plonk it on almost every night because I simply don't, or can't be bothered to, think about skipping a night. The odd time I might have not charged always seems to be been before a day I'll be out and about using it a lot.
I virtually never charge in car despite using it as satnav. Simply no need with a full charge in the morning - and I do not have a magsafe car charger.
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